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DIGITAL LIBRARY: SAMPE neXus 2021 | JUNE 29 - JULY 1

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Molecular Dynamic Simulation and Experimental Investigation of Short Glass Fiber Reinforced Polymeric Nanocomposites for Mechanical Properties

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Title: Molecular Dynamic Simulation and Experimental Investigation of Short Glass Fiber Reinforced Polymeric Nanocomposites for Mechanical Properties

Authors: Nilesh B. Shahapure, Amit D. Kamble, Dattaji. K. Shinde

DOI: 10.33599/nasampe/s.21.0503

Abstract: Epoxy material reinforced with nanomaterial have recently received attention in both scientific and industrial communities due to their enhanced mechanical properties for structural application. The study of these materials is still empirical in nature and a finer degree of control of their properties is needed. Molecular dynamics (MD) simulation is one of the most effective way of mechanical property evaluation of these material without carrying out expensive and time-consuming experimentation work. In this paper, MD simulation of diglycidyl ether of bisphenol F(DGEBF) and diethyl toluene diamine (DETDA), a resin and hardener mixture reinforced with multiscale reinforcement. Chopped E glass fiber is carried to study their reaction kinetics so that molecular level reason for the property improvement can be identified. Study shows that uniform isotropic properties can be achieved by this type of multiscale reinforcement. Molecular dynamics simulation of neat epoxy was carried out which shows that maximum tensile strength up to 100MPa.The obtained structure in MD simulation had 55% crosslinking with around 220 new bond formation between the resin and crosslinking agent. The density obtained by this simulation was 0.77gm/cc which will go on increasing as crosslinking goes on increasing. Tensile strength obtained by MD simulation is compared with the experimental result of 55MPa difference observed may be because of the highly stressed structure of the generic resin obtained from the supplier and standard data of curing cycle was available.

References: [1] Ananyo Bandyopadhyay, Benjamin D. Jensen, ´ Atomistic Modeling of Cross-linked Epoxy Polymer’, 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 12 - 15 April 2010, Orlando, Florida. [2] ‘Comparison of mechanical properties of EPON 862/W with and without TEOS electrospun nanofibers in nanocomposite’, DK Shinde, L Emmanwori, AD Kelkar - SAMPE Seattle 2014, pg. 59-4040, June 2, 2014 0.250.200.150.100.050.000-500000000-1.000E+09-1.500E+09-2.000E+09-2.500E+09StrainStress(Pa)Stress vs Strain in ZZ direction [3] Sheikhnejad O, Nakamoto T, Kalteis A, Rajabtabar A, Major Z,Molecular Dynamic Simulation of Carbon Nanotube Reinforced Nanocomposites: The Effect of Interface Interaction on Mechanical Properties. MOJ Poly Sci 2(1): 00038. DOI: 10.15406/mojps.2018.02.00038 [4] Park H, Kim B, Choi J, Cho M, Influences of the molecular structures of curing agents on the inelastic-deformation mechanisms in highly-crosslinked epoxy polymers, Polymer (2018), doi: 10.1016/j.polymer.2017.12.055. [5] ASTM D 638, “Standard test method for tensile properties of plastics,” ASTM International, USA [6] Mayo, Stephen L. and Olafson, Barry D. and Goddard, William A., III (1990) DREIDING: A generic force field for molecular simulations. Journal of Physical Chemistry, 94 (26). pp. 8897-8909. ISSN 0022-3654. [7] “Carbon nanotubes as reinforcement in composites: A review of the analytical, numerical and experimental approaches”, Sadegh Imani Yengejeh, Seyedeh Alieh Kazemi, Andreas, Computational Materials Science, 2017 http://dx.doi.org/10.1016/j.commatsci.2017.04.023 0

Conference: SAMPE NEXUS 2021

Publication Date: 2021/06/29

SKU: TP21-0000000503

Pages: 10

Price: FREE

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